FTIR analysis of polyethylene terephthalate irradiated by MeV He+

Djebara, M.; Stoquert, J.P.; Abdesselam, M.; Müller, D.; Chami, A.C.

doi:10.1016/j.nimb.2011.11.022

Cited by 56 publications

(25 citation statements)

References 35 publications

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“…. The characteristic peaks in the FTIR spectrum of the pristine PET nanofibers appeared at 1721 (CO stretching), 1413 (CC stretching and CH in plane deformation in aromatic ring), 1339 (CH 2 wagging) and 1246 (OCC stretching of ester), 1102 (OCH 2 stretching) and 1027 (ring CH in‐plane bending), 871 (parasubstituted benzen ring) and 729 cm −1 (CC bending and CH out of plane in aromatic ring) . The characteristic peak of coupled CC/CO stretching vibrations and the antisymmetric stretching vibration of the COC glycosidic bridge of CD could not be identified in the FTIR spectra of PET/CD nanofibers because of the overlapping of absorption peaks of CD and PET.…”

Section: Resultsmentioning

confidence: 99%

Electrospun polyester/cyclodextrin nanofibers for entrapment of volatile organic compounds

Kayacı

Uyar

2014

Polymer Engineering & Sci

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Polyester (PET) nanofibers incorporating cyclodextrins (CD) were obtained via electrospinning. a-CD, b-CD, and c-CD were used to functionalize PET nanofibers. Beadfree PET/CD nanofibers were obtained from lower polymer concentration indicating that the incorporation of CD in polymer solution improved the electrospinnability of the PET nanofibers. XRD studies indicated that CD were distributed into nanofiber without forming crystalline aggregates. FTIR peak shift was observed possibly due to interaction between CD and PET. TGA confirmed that initial CD loading (25%, w/w) in the polymer solution was preserved for the PET/CD nanofibers. The presence of most of CD on the surface of PET/CD nanofibers was confirmed by XPS analysis and contact angle measurement. DMA results indicated that incorporation of CD improved the mechanical property of the nanofibers. Our studies showed that PET/CD nanofibers can effectively entrap aniline vapor as a model volatile organic compound (VOC) from surrounding owing to their very large surface area and inclusion complexation capability of CD.

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Section: Resultsmentioning

confidence: 99%

Electrospun polyester/cyclodextrin nanofibers for entrapment of volatile organic compounds

Kayacı

Uyar

2014

Polymer Engineering & Sci

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“…Characterization studies: Fourier transform infrared (FTIR) spectroscopy was extensively used to study the environment of chemical bonds of polymers and the supramolecular interactions between molecules through the characterization of their vibrational types [14][15][16][17][18][19][20]. FTIR spectroscopic study of the polymer was conducted to ascertain the active functional groups on the polymer accountable for attaching of Pb 2+ from solution.…”

Section: Resultsmentioning

confidence: 99%

Adsorption Study of Lead(II) Ions on Poly(methyl methacrylate) Waste Material

Abasi¹,

Wankasi²,

Dikio³

2018

Asian J. Chem.

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The sorption of Pb 2+ from solution by poly(methyl methacrylate) (PMMA) waste has been investigated. The morphological characterization of the collected PMMA polymer were studied by scanning electron microscopy. Equilibrium, kinetics and thermodynamic batch adsorption experiments of Pb 2+ on the PMMA waste samples were carried out. This study enabled the determination of the concentration, time and temperature effects, respectively on the adsorption properties of the PMMA polymer. The morphological image of the PMMA polymer showed the presence of irregular small size particles that indicated a high surface which is therefore possible to facilitate sorption. The reaction kinetics of the adsorption studies of Pb 2+ by the polymer followed a second-order rate process. The results indicated that the adsorbent, PMMA, proved to be an effective material for the treatment of lead contaminated water solution. The thermodynamic studies suggested a reaction that favoured a relatively low temperature (low energy) sorption that is exothermically controlled with a physisorption mechanism.

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“…[16]. Numerous studies of PET samples irradiated by noble gases [17][18][19][20][21][22], metals [23][24][25] and nonmetals [2,26] were reported. In most cases a very prominent decrease of PET resistance with the implantation fluence was shown.…”

Section: Introductionmentioning

confidence: 99%

Modification of Optical and Electrical Properties of PET Foils by He⁺, Ne^+ and Ar^+ Implantation

et al. 2017

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Thin (3 µm) polyethylene terephthalate (PET) foils were irradiated with 135 keV He + , Ne + and Ar + ions with the fluences up to 5 × 10 15 cm −2 . Changes of chemical structure of the polymer were studied with the Fourier transform infrared and Raman spectroscopy -breaking of numerous chemical bonds, polymer chain cross-linking as well as formation of sp 2 hybridised carbon clusters and cluster networks were demonstrated. The increase of the implanted sample absorbance with the implantation fluence in the UV-VIS spectra as well as the decrease of optical band-gap energy (2.75 and 2.0 eV for He and Ne, respectively, at 5 × 10 15 cm −2 ) are observed. Decrease of bulk resistance of heavily treated samples by ≈ 5 orders of magnitude is determined. Measurements of the sheet resistance confirm that the sample becomes conducting also on the reverse (unimplanted) side of the foil. Both of these effects depend on the impinging ion mass -they are the strongest for Ar. The increase of both ac conductance and dielectric constant is observed in the frequency range up to 2 MHz and these changes rise with the impinging ion mass.

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FTIR analysis of polyethylene terephthalate irradiated by MeV He+

Cited by 56 publications

References 35 publications

Electrospun polyester/cyclodextrin nanofibers for entrapment of volatile organic compounds

Electrospun polyester/cyclodextrin nanofibers for entrapment of volatile organic compounds

Adsorption Study of Lead(II) Ions on Poly(methyl methacrylate) Waste Material

Modification of Optical and Electrical Properties of PET Foils by He⁺, Ne^+ and Ar^+ Implantation

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FTIR analysis of polyethylene terephthalate irradiated by MeV He+

Cited by 56 publications

References 35 publications

Electrospun polyester/cyclodextrin nanofibers for entrapment of volatile organic compounds

Electrospun polyester/cyclodextrin nanofibers for entrapment of volatile organic compounds

Adsorption Study of Lead(II) Ions on Poly(methyl methacrylate) Waste Material

Modification of Optical and Electrical Properties of PET Foils by He+, Ne^+ and Ar^+ Implantation

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Product

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Modification of Optical and Electrical Properties of PET Foils by He⁺, Ne^+ and Ar^+ Implantation